Salam Eyup, although Acrobat can OCR many languages, yet it is unfortunate that Acrobat Pro DC cannot convert (OCR) the content if it is Arabic/Farsi/Urdu or in this case Türkçe. The acrobat team is still working on this feature to support Arabic.
In Acrobat you can reduce file size in a simple step. Just go to the "File" menu and choose "Reduce File Size". See attached reduced file.